condition mean min max ZT0-3 1573.8 1573.8 1573.8 ZT4-7 1058.6 1058.6 1058.6 ZT8-11 1031.6 1031.6 1031.6 ZT12-15 1239.4 1239.4 1239.4 ZT16-19 1648.0 1648.0 1648.0 ZT20-23 1613.9 1613.9 1613.9